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Finding the Fourth Proportional to 478,129.83, 659,833.68 and 263,277.58

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Solution

The fourth proportional to 478,129.83, 659,833.68 and 263,277.58 is: 363,331.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,129.83 : 659,833.68 = 263,277.58 : x
  2. Step 2: Convert to fraction form
    478,129.83/659,833.68 = 263,277.58/x
  3. Step 3: Cross multiply
    478,129.83x = 659,833.68 × 263,277.58
  4. Step 4: Simplify right side
    478,129.83x = 173,719,414,472.89
  5. Step 5: Solve for x
    x = 173,719,414,472.89/478,129.83
  6. Step 6: Final answer
    x = 363,331.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.